utilize equipment or processes that exceed relevant Federal or State clean air requirements applicable to the unit or facilities included in the projects by achieving greater efficiency or environmental performance.

projects whose installation is likely to result in significant air quality improvements in nonattainment air quality areas or substantially reduce the emission level of criteria pollutants and mercury air emissions;

(2)

projects for pollution control that result in the mitigation or collection of more than 1 pollutant; and

(3)

projects designed to allow the use of the waste byproducts or other byproducts of the equipment.

No technology, or level of emission reduction under subsection (a)(2) of this section shall be treated as adequately demonstrated for purpose of Section [1] 7411 of this title, achievable for purposes of section 7479 of this title, or achievable in practice for purposes of section 7501 of this title solely by reason of the use of such technology, or the achievement of such emission reduction, by one or more facilities receiving assistance under section 13572(a)(2) of this title.